No exploitation reportedFix available

CVE-2018-0426

Q: Is CVE-2018-0426 actively exploited?

Active exploitation of CVE-2018-0426 has not been confirmed. Its EPSS score was 6.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-0426?

CVE-2018-0426 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2018-10-05
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper validation of directory traversal character sequences within the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to the targeted device. A successful exploit could allow the attacker to gain access to arbitrary files on the affected device, resulting in the disclosure of sensitive information.

Timeline

dates in UTC

2018-10-0514:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0426?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0426?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Cisco rv110w firmwareversion to verify

Branch	Affected	Fixed in	Source
1.2	≤ 1.2.1.7	no fix published	NVD

Cisco rv130w firmwareversion to verify

Branch	Affected	Fixed in	Source
1.0	< 1.0.3.44	1.0.3.44	NVD

Cisco rv215w firmwareversion to verify

Branch	Affected	Fixed in	Source
1.3	≤ 1.3.0.8	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

tools.cisco.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-11-25
OpenCVESSVC decisionnone—
NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-22read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score6.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-10-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-0426?

Is CVE-2018-0426 actively exploited?

Active exploitation of CVE-2018-0426 has not been confirmed. Its EPSS score was 6.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-0426?

CVE-2018-0426 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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